If you'd like access to the "latest and greatest" in LLVM development, please
see the instructions for accessing the LLVM SVN Repository. The major
changes and improvements that SVN contains relative to the previous release are
listed in the Release Notes for the
next release.

Mac OS/X universal tarball with llvm-gcc 4.0 and all other LLVM tools
This is most useful if you want a no-fuss drop-in replacement for Apple GCC.
To install this, sudo to root, then untar in /. This installs tools in /usr/local/bin,
which work on either ppc and intel macs. In addition, llvm-gcc supports the -arch option for
Apple-style cross-compiles and universal builds.